Oil and water injector



(No Model.)

0. H. JEWBLL.

OIL AND WATER INJECTOR.

120267.692. Patented Nov. 21, 1882.

'Emwntcr:

W144; at "rit'.

UNITED STATES OMAR H. JEWELL, on

PATENT FFICE.

CHICAGO, ILLINOIS.

OIL AND WATER INJECTOR.

V SPECIFICATION forming part of Letters Patent No. 267,692, datedNovember 21, 1882.

Application filed September 26, 1882. (No model.)

To all whom it may concern Be it known that I, OMAR H. JEWELL, ofChicago, in the county of Cook and State of 1llinois,have inventedcertain new and useful Improvementsin Oil and Water Injectors; and I dohereby declare that the following is a full, clear and exact descriptionthereof, reference being bad to the accompanying drawings, and to theletters of reference marked thereon,whic h form a part of thisspecification.

This invention relates to devices for automatically feeding oil intosteam-cylinders or Water into steam-boilers in regular quantities witheach stroke of the engine; and it consists in an apparatus in which thepulsation of the steam will vibrate one or more diaphragms, suchdiaphragms with each vibration bringingaboutanalternatesuctionandcompression that, in connection with suitablesuction and check valves, will operatein the manner of a piston. pump,all as hereinafter will be described and specifically claimed.

In the accompanying drawings, Figure 1 represents a vertical sectionthrough the center of the apparatus asarrangcd for feeding oil forlubricating purposes. Fig. 2 is a plan of the base of the apparatusdetached, showin g the lower diaphragm. Fig. 3 is a bottom view of thedisk. that holds the upper or small diaphragm, Fig. 4. is a sectionalview of a steam-cylinder having my apparatus attached, and Fig. 5 is asection of the apparatus arranged as a feed-water injector for boilers.

Gorrespondin g letters in the several figures of the drawings designatelike parts.

In Figs. 1., 2, 3, and 4, A denotes the base, having a hollowscrew-stem, a, centrally to its bottom, and an annular flange, b, to itstop, that is exteriorly screw-threaded.

B is a disk, having a rim-flange, c, to its bottom edge, which isexterior-1y screw-threaded to connect with the flange b of base A, and arim-flange, d, to its top edge for holding the glass tube 0. This disk Bhas a screw-stem, e, centrally to its top face, that is bored andcounterbored, and in the bottom of disk B, around its bore, is formed acircular chamber, which is screw-threaded for a screw-ring,f, andbetween the top of this chamber and screwringf is held the flange of asheet-metal cup, I

g, which flange may be soldered to the screwringf; or thejoints may beclosed hermetically by a little packing or cement placed between suchflange and ring. The bottom of cup 9 is spun out to be a little concave,with acrease around its edge, that will allow such bottom to yield to anupward pressure, and when released to reassume its former shape. spring,h, is inserted with one end into the counterbore ot' screw-stem e, andexerts with its lower end a pressure upon the center of the concavebottom of cup A sheet-metal diaphragm, D, is clamped with its edgesbetween the flange b of base A and disk B, and may be either solderedtosuch flange b or thejoints may be closed hermetically by cement orpacking. This diaphragm I) is formed concave, with an annular creasenear its circumference, in a manner to yield to an upward pressure andto reassume its original shape as soon as released- The center of thebottom of cup 9 is in close contact with diaphragm D in a manner that anupward pressure upon diaphragm D will be transmitted to the bottom ofcup g.

Upon screw-stem e is secured the valvecasing E, that has a screw-socketin its upper endfor coupling the tubular stem F, upon which again isscrewed the cap-disk G, that has a flange to its bottom edge forreceiving and holding the top ofglass tube 0. Between stem A spiral eand the screw-socket the casing E is bored out to form the seat for asmall conical checkvalve, 71, that will open with an upward pressure. Toone side of valve/i another seat is formed for a suction-valve, K, theopening through which such valve is inserted in its seatbeingclosedbyascrew-plug,l. Acommunicat ing channehm, is formed in thecasing between V the chamber above valve K and the chamber below valve1', through which the liquid will flow.

To the upper extremity oftubular stem F is'se- "cured acasing, H, for anauxiliary check-valve, 0, and the top opening through which suchcheck-valve is inserted is closed by a tubular nut, p, that holds ascrew, q, having a handwheel, 1, to its upper end, and is provided witha packing-nut, s, for closing the joints around screw q. By thisset-screw the raising of the valve 0 can be limited for regulating thequan tity of liquid that is to pass-through the valveopening.

The casing H has a screw-socket, t, to one side, for coupling a pipe, u,which connects with the steam-pipe I of the engine. A pipe, o, is tappedinto the cylinder-cover J, and by an elbow, to, is coupled either director indirect with screw-stem a of the apparatus.

The cap G is provided with an opening, that is closed by a screw-plug,L, for filling the apparatus with oil.

While the engine is running live steam from the boiler is admitted fromthe steam-chest through the slide-valve alternately into one end andthen into the other end of the steam-cylinder, and the apparatus beingconnected by pipe 1) with one end of the cylinder, the pressure of thesteam will act in pulsations upon the diaphragm D in a manner that witheach revolution of the engine-shaft such diaphragm will be oncedepressed and released again, and the pulsation of diaphragm D beingtransmitted to the bottom of cup 9, such cup with every depression willforce a small quantity of oil through the check-valves i and 0, and withevery releasing again it will draw oil through suction-valve K. Thediaphragm D having a much larger area against which the steam acts thanthe elastic bottom ofcup g; that again is acted upon by such diaphragmD, the force eX- erted by the pulsations of such cup 9 is much in excessover the pressure of steam in the boiler or steam-pipe into which thewater or oil is to be fed, thus insuring a perfect and reliableoperation of the pumping mechanism. Live steam thus being admitted intothe chamber between diaphragm D and base A,these' parts become heatedand will conduct the heat to disk B, which again will heat the contentsof the glass tube chamber sufficiently to liquefy tallow, and thusenable the use of tallow for. lubricating purposes.

Fig. 3 represents the apparatus as constructed to be used asa feed-waterinjector for steam-boilers, when, as will be noticed, the constructionof the operating parts is the same, only the glass tube 0 and cap-disk Gare left oh, and an additional pipe, as, is required, that connects witha chamber formed below suction-valve K, and leads to the tank orreservoir whence the feed-water is to be drawn. The pipe a in this caseis to be connected with the boiler and the pipe 22 with thecylinderhead,and the entire apparatus is to be made of proportional largerdimensions.

As will be noticed, the apparatus isvery compact in its construction,and has no parts,

-,excepting the valves, which could wear, and

every part is easily accessible should repairs be required.

The application of diaphragms in the manner described has manyadvantages over a piston or plunger device that requires a connectionwith a moving part of the engine, which in most instances is cumbersometo make and adds to the cost of the apparatus.

With this apparatus to an engine, oil or water will be fed automaticallyin uniform quantities with every stroke of such engine, and as soon asthe engine stops running the feed will stop also.

The apparatus can be connected to feed oil not only into the steam-pipefor lubricating the valve and cylinder, but as well to other parts ofthe engine that need lubricating, or to the air-pump cylinder onlocomotives f0 operating the pneumatic brakes.

For feeding oil or water to places whence the flow is not resisted by acounter-pressure, the cup or diaphragm 9 may be dispensed with and onlya single diaphragm, D, applied.

What I claim is- 1. An oil or water injector having one or more elasticdiaphragms that communicate with either end of the cylinder of asteam-engine or air-pump in a manner that such diaphragms arealternately depressed by the pressure of the steam or air and releasedagain with the exhaustion of the same, and having suction and checkvalves that will draw and direct the course of the'oil or water set inmotion by the pulsations of such diaphragms,the whole being constructedand arranged to operate substantially in the manner set forth, for

"the purpose specified.

.2. An oil or water injector that'is to be connected by apipe, o,withone end of the cylinder of a reciprocating engine or pump, and isprovided with elastic diaphragms D and g, suction-valve K, andcheck-valves t and 0, the whole being constructed and arranged to0perate substantially as set forth.

3. An oil-injector that is to be connected by a pipe, 17, with one endof the cylinder of a reciprocating engine or pump, has an oil-reservoir,C, and is provided with elastic diaphragms D and g, suction-valve K, andcheckvalves i and 0, the whole being constructed and arranged to operatesubstantially as specified.

In testimony that I claim the foregoing as my invention I affix mysignature in presence of two witnesses.

OMAR H. JEWVELL.

Witnesses:

G. HUZEL, L. NOL'IING.

